It's almost two weeks when we shared the first Android 4.3 Jelly Bean test firmware for Galaxy S4. That firmware for Galaxy S4 has got a new build, which according to Sammobile is the final build. Which means, nothing will be included or excluded in the future builds of Android 4.3 for Galaxy S4, rather than fixing few bugs and doing some improvement here and there.

Sammobile notes that, Samsung will roll out the Android 4.3 update for Galaxy S4 within 1-2 weeks. The new firmware has got no major changes, expect some minor improvements. The firmware is very stable and the performance has received a significant boost, much faster and lag free than Android 4.2.2.

The Android 4.3 update will bring Samsung KNOX security service and Samsung Wallet. Samsung will also include a new reading mode in the update, which optimises the display for reading the textual content. As per the firmware, Samsung has also improved the functionality of Samsung Keyboard, with minor UI changes.

Below is the how-to guide for installing this leaked firmware on your Galaxy S4, along with full details of the firmware. You can also have a look at the below video by Sammobile, which gives a small look of Android 4.3 (first build) vs Android 4.2.2 on Galaxy S4.